Stagetillus irri Maddison, sp. nov.
|
publication ID |
https://dx.doi.org/10.3897/zookeys.1004.57526 |
|
publication LSID |
lsid:zoobank.org:pub:320559CF-19B5-423C-B7FB-72555290241A |
|
persistent identifier |
https://treatment.plazi.org/id/6B14FEE5-A08F-5E1F-A9F4-1C2FB55A4068 |
|
treatment provided by |
|
|
scientific name |
Stagetillus irri Maddison, sp. nov. |
| status |
|
Stagetillus irri Maddison, sp. nov. Figs 151-157 View Figures 151–157
Type material.
Holotype male (specimen IDWM.20023, in FSCA) and paratype female from Philippines: Luzon: Laguna Province, Los Baños, International Rice Research Institute, February 1993. R.R. Jackson (batch RRJ Ph 246/93). Other paratypes from same locality are 1 male (specimen IDWM.20022), December 1996, R.R. Jackson (batch RRJ Ph 292/96, in UBCZ); 3 females (specimens IDWM.20014, S202, and S203, in UBCZ), 1-16 December 1993, R.R. Jackson & G.B. Edwards; and 2 males 3 females, March 1993, R.R. Jackson (batch RRJ Ph 323/93, in FSCA).
Etymology.
From the acronym for the type locality. Other names: This species was referred to by Maddison and Hedin 2003 as "unident. (Phil.)" In WPM’s lab notebooks the informal code for this species was “STPHL”.
Notes.
The FSCA holds more material of this species, including from Mt. Makiling, near the type locality but at higher elevation (G. B. Edwards, pers. comm.).
Diagnosis.
Similar in overall appearance to S. opaciceps , from which it differs in palp (narrower and longer embolus) and epigyne (shorter openings and having a central mound, presumably bearing the ECP). Male lacking the dense fringe beneath the first leg (Figs 155 View Figures 151–157 vs. 146), but with a spur on the paturon (Fig. 155 View Figures 151–157 , arrow) that is lacking in S. opaciceps (Fig. 146 View Figures 143–150 ). Male endite lacks the lateral bulge seen in S. opaciceps .
Description.
Male (based on holotype, specimen IDWM.20023). Carapace length 3.3; abdomen length 4.6. Carapace yellow-orange with two darker stripes passing along PME, PLE, and to posterior margin, with transparent ocular areas showing bright white digestive diverticular beneath. Shape as in S. opaciceps (Fig. 150 View Figures 143–150 ). Clypeus narrow, more or less glabrous. Chelicerae orange, projecting slightly, with a spur on each paturon just above the fang base (arrow, Fig. 155 View Figures 151–157 ). Palp pale except darker cymbium. Embolus arising at ~ 9:00 on the bulb, narrowing to a fine tip, with transparent flange retrolaterally (Fig. 151 View Figures 151–157 ). Long lobe of tegulum overhangs the tibia. RTA broad and obtuse. Legs pale yellow to dark orange, first pair darkest, with femora of first two pair darker below. First leg long, with only a weak fringe beneath. Abdomen with dark central band with three wider areas, flanked by bright white.
Female (based on paratype, specimen IDWM.20014). Carapace length 2.9; abdomen length 5.2. Entirely light in colour, from white to medium orange, except for the black of eyes, and small black patch at the front distal tip of the first leg femur. Carapace pale orange, with transparent ocular area showing bright white digestive diverticular beneath. Shape as in S. opaciceps (Fig. 157 View Figures 151–157 ). Chelicerae orange, with five retromarginal teeth. Legs pale to dark honey-orange, except for black on prolateral tip of femur I. Abdominal integument transparent in alcohol, showing white digestive glands to either side of beige heart and mottled stercoral pocket. Epigyne (Fig. 153 View Figures 151–157 ) similar to those of Bavia , with sclerotized openings on either side of a central mound.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.